body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

#root {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.canvas-layout {
  flex: 1;
  display: flex;
}

.canvas-container {
  flex: 1;
  position: relative;
  background-color: #f5f5f5;
  overflow: auto;
}

.main-canvas {
  background-color: white;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.tool-button {
  width: 40px;
  height: 40px;
  margin: 8px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-button.active {
  background-color: #e6f7ff;
}